为什么照片未显示在网页中. [英] Why the photo is not displaying in web page.
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问题描述
为什么照片不显示在网页上.我的HTML和CS编码如下所示.仅图像图标代替图像显示.
HTML零件
Why the photo is not displaying in web page.My HTML and CS coading is given below.Only image icon is displaying in place of image.
HTML Part
<body>
<form id="form1" runat="server">
<div>
<asp:Image ID="Image1" runat="server" ImageUrl="~/blank.jpg" />
<br />
<br />
<br />
<br />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<br />
<br />
<br />
<br />
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<br />
<br />
<br />
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
<br />
<br />
<asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
</div>
</form>
</body>
</html>
CS Part is given below
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.OleDb;
using System.Data;
using System.IO;
public partial class Retrive_Data_From_Database_and_display_in_TextBox : System.Web.UI.Page
{
OleDbConnection con;
OleDbCommand com;
OleDbDataAdapter da;
DataSet ds;
protected void Page_Load(object sender, EventArgs e)
{
con = new System.Data.OleDb.OleDbConnection();
ds = new DataSet();
con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("~/kamnagroup.mdb") + "";
string sql = "select aname,add1,photo,point from joining WHERE point=(SELECT MAX(point) FROM joining)";
da = new System.Data.OleDb.OleDbDataAdapter(sql,con);
con.Open();
da.Fill(ds,"joining");
navigatedata();
con.Close();
}
private void navigatedata()
{
DataRow dRow=ds.Tables["joining"].Rows[0];
System.Web.UI.WebControls.Label lbl1 = new System.Web.UI.WebControls.Label();
TextBox1.Text = dRow.ItemArray.GetValue(0).ToString();
TextBox2.Text = dRow.ItemArray.GetValue(1).ToString();
lbl1.Text = dRow.ItemArray.GetValue(2).ToString();
TextBox3.Text = dRow.ItemArray.GetValue(3).ToString();
TextBox4.Text = dRow.ItemArray.GetValue(2).ToString();
Image1.ImageUrl = System.IO.Path.GetFileName(lbl1.Text);
}
}
推荐答案
我们不一定能说出的表格.
但是，我将在浏览器中打开该页面，然后右键单击该页面以查看源代码"(IE)，或者右键单击该图像，然后单击检查元素"(Chrome)-FF将具有类似的功能.
然后，您可以根据URL查看HTML试图显示的图像.我怀疑这将是基于服务器的HDD地址，对于基于客户端的浏览器来说这毫无用处...
看看以下内容:通用Image-From- ASP.NET的数据库类 [ ^ ]-它可能无法完全满足您的需求，因为它假定图像实际上存储在数据库中，但是您应该可以轻松地进行修改以适合您的情况.
Form that we can''t necessarily tell.
However, I would open the page in the browser, and either right click on it to "View Source", (IE) or Right click the image and "Insepect element" (Chrome) - FF will have similar.
You can then look at what the HTML is trying to display for the image in terms of the url. I suspect that it will be a Server based HDD address, which is of no use what so ever to a Client based browser...
Have a look at this: A generic Image-From-DB class for ASP.NET[^] - it may not cover your needs exactly since it assumes the image is actually stored in the DB, but it should be easy for you to modify to fit your circumstances.
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